BOSTON, April 27 /PRNewswire/ -- Rokonet Industries, U.S.A., Inc., a wholly-owned subsidiary of RISCO Ltd. (RISCO), announced today that it has extended its $3.50 per share cash tender offer for all of the common stock of International Electronics, Inc. (IEI) (OTC:IEIB) (BULLETIN BOARD: IEIB) not already owned by it or its subsidiaries to 5:00 P.M., New York City time, on Monday, May 21, 2007. The tender offer was previously set to expire at 12:00 Midnight, New York City time, on Thursday, April 26, 2007. The extension of the tender offer is intended to provide additional time for IEI to convene a special meeting of its stockholders that RISCO demanded under the Massachusetts Control Share Acquisition Statute to approve voting rights of any IEI shares RISCO may acquire in its offer. IEI has indicated that it intends to hold a stockholders meeting on May 18, 2007 for such purpose. As of the close of business on April 26, 2007, approximately 244,019 IEI shares had been tendered in and not withdrawn from the offer. MacKenzie Partners, Inc. is the Information Agent for RISCO's tender offer and any questions or requests for the Offer to Purchase and related materials with respect to the tender offer may be directed to MacKenzie Partners, Inc. Additional Information and Where to Find It This communication may be deemed to be solicitation material in respect of the solicitation of proxies of Rokonet Industries, U.S.A., Inc. from stockholders of IEI in connection with the special meeting of IEI stockholders expected to be held on May 18, 2007. Rokonet Industries, U.S.A., Inc. has filed a definitive proxy statement on Schedule 14A. IEI STOCKHOLDERS SHOULD READ THOSE MATERIALS CAREFULLY BECAUSE THEY CONTAIN IMPORTANT INFORMATION REGARDING RISCO'S PROPOSAL. Stockholders will be able to obtain the proxy statement and related materials with respect to the special meeting free at the SEC's website at http://www.sec.gov/ or from Rokonet Industries, U.S.A., Inc. by contacting Mackenzie Partners, Inc. toll free at 1-800-322-2885 or collect at 1-212-929-5500 or via email at . The offer to buy IEI common stock is only being made pursuant to an offer to purchase and related materials that Rokonet Industries, U.S.A., Inc. has filed with the SEC. IEI STOCKHOLDERS SHOULD READ THESE MATERIALS CAREFULLY BECAUSE THEY CONTAIN IMPORTANT INFORMATION, INCLUDING THE TERMS AND CONDITIONS OF THE OFFER. Stockholders will be able to obtain the offer to purchase and related materials with respect to the tender offer at the SEC's website at http://www.sec.gov/ or from Rokonet Industries, U.S.A., Inc. by contact Mackenzie Partners, Inc. toll free at 1-800-322-2885 or collect at 1-212-929-5500 or via email at . Participants in Solicitation Rokonet Industries, U.S.A., Inc. and its directors and executive officers may be deemed to be participants in the solicitation of proxies from the holders of IEI common stock in respect of the proposed special meeting of stockholders. Certain information about such persons and their interest in the solicitation will be contained in the proxy statement regarding the special meeting, when it becomes available. DATASOURCE: RISCO Ltd. CONTACT: Bob Marese, +1-212-929-5045, Lex Flesher, +1-212-929-5397, both of MacKenzie Partners, Inc., for RISCO Ltd.

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